Abstract

Ternary liquid—liquid equilibrium data at 25°C were obtained for the water—ethanol—1,8-cineole system, 1,8-cineole being the main component of eucalyptus oil. This study formed one aspect of a project utilizing solar energy stored in plants as liquid fuel components. Experimental results confirmed the absence of phase separation problems in the use of this system as a liquid fuel. The tie-line data for the system were well correlated by the methods of Hand and Othmer—Tobias. The solubility of 1,8-cineole in water was determined over a range of temperatures.